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Accumulation of Trace Elements in Coals from Various Basins of Russia

机译：俄罗斯各盆地煤中微量元素的积累

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摘要

The average concentrations of trace elements in coals from the South Fergana, North Sos'va, Kizelovsk, South Yakutian, Transbaikalia, Pechora, and Zyryansk deposits and some deposits of the Kuznetsk and Primor'e Basins are compared. The degrees of trace element concentration were calculated both on atotal coal weight basis (0,-) for individual basins and on a mineral matter basis (Qf) with reference to Clarke numbers in clay rocks. Ratios between the concentrations of typomorphic trace elements on a coal mineral matter basis were calculated for the deposits of basins with different geologic-geochemical formation conditions (Xf); the concentration ratios between the pairs of typomorphic trace elements in the considered coal basins (Z,) were also calculated. Typomorphic elements are the trace elements with Q_i > 1.4 or Q_i~A > 2. Coal basins of different origin have different numbers of typomorphic trace elements calculated in terms of the parameter Q_i and, to a lesser degree, the parameter Q_i . Coal basins differ considerably from each other in both the ratios between the average concentrations of the same trace element in the mineral matter of coal (parameter X~A_j ) and the ratios between the concentrations of two different trace elements (parameter Z_j). In the basins under discussion, the mineral matter of coals from formations created in areal rift genesis regions, in particular, Triassic-Jurassic coals and, to a lesser degree, Carboniferous coals, are enriched in trace elements to the greatest extent. Coals from subgeosynclinal formations have a maximum number of typomorphic trace elements (in terms of the average concentrations in the mineral matter), practically the majority of the test elements with the exception of Nb, Sn, Ni, and Sc. Coals from young mobile platforms are characterized by a similar number of typomorphic trace elements with the exception of Nb, Zn, Y, and Yb. Coals from geosynclina) formations have a somewhat smaller set of typomorphic trace elements, whereas a minimum number of typomorphic elements is characteristic of coals from platform basins.
机译：比较了南费尔干纳州，北索斯瓦州，基泽洛夫斯克州，南雅库特州，拜拜卡利亚州，佩乔拉州和吉里扬斯克州矿床以及库兹涅茨克和滨海边疆区一些矿床中煤中痕量元素的平均浓度。参照单个盆地的总煤重（0，-）和矿物质（Qf），计算了微量元素的浓度，并参考了粘土岩石中的克拉克数。计算了具有不同地质-地球化学形成条件（Xf）的盆地的沉积物，以煤矿物含量为基准的微量元素浓度之间的比率。还计算了所考虑的煤盆地中成对的微量元素之间的浓度比（Z，）。拟形元素是Q_i> 1.4或Q_i〜A> 2的痕量元素。不同起源的煤盆地具有不同数量的根据参数Q_i和较小程度的参数Q_i计算的拟形痕量元素。煤盆地在煤矿物质中相同痕量元素的平均浓度之间的比率（参数X_A_j）与两种不同痕量元素的浓度之间的比率（参数Z_j）之间存在很大差异。在所讨论的盆地中，区域裂谷成因区中形成的地层中的煤，尤其是三叠纪-侏罗纪煤，以及程度较小的石炭系煤，中的矿物质在最大程度上富集了微量元素。来自亚地斜下层地层的煤具有最多的拟形痕量元素（就矿物质中的平均浓度而言），实际上是大多数测试元素，但Nb，Sn，Ni和Sc除外。来自年轻移动平台的煤的特征在于，除了Nb，Zn，Y和Yb以外，还有许多类似的微量元素。地层岩层中的煤具有少量的错形痕量元素，而最少数量的错形元素是平台盆地煤的特征。

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  • 来源
    《Solid Fuel Chemistry》 |2011年第3期|p.149-164|共16页
  • 作者

    M. Ya. Shpirt; S. A. Punanova;

  • 作者单位

    R&D Center for Complex Processing of Solid Fossil Fuel, Institute for Fossil Fuels, Leninskii pr. 29, Moscow, 119991 Russia;

    Oil and Gas Research Institute, Russian Academy of Sciences, ul. Gubkina 3, Moscow, 117333, Russia;

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